Question

(1,-1) (-4,6) (-3,-5) by area of Traingle​

Answer 1

Answer:

when the three points are (x1,y1) (x2,y2) (x3,y3)

area of , A= 1/2(x1(y2-y3)+x2(y3-y1)+x3(y1-y2))

A= 1/2(1(11)+(-4)(-4)+(-3)(-7)

= 1/2 (11+16+21)

= 1/2(48) = 24